COHOMOLOGY OF CERTAIN CONGRUENCE SUBGROUPS OF THE MODULAR GROUP

Authors
WILLIAMS F WISNER RJ
Citation
F. Williams et Rj. Wisner, COHOMOLOGY OF CERTAIN CONGRUENCE SUBGROUPS OF THE MODULAR GROUP, Proceedings of the American Mathematical Society, 126(5), 1998, pp. 1331-1336
Citations number
7
Categorie Soggetti
Mathematics,Mathematics,Mathematics,Mathematics
Journal title
Proceedings of the American Mathematical Society → ACNP
ISSN journal
00029939
Volume
126
Issue
5
Year of publication
1998
Pages
1331 - 1336
Database
ISI
SICI code
0002-9939(1998)126:5<1331:COCCSO>2.0.ZU;2-O
Abstract
In this note we compute the integral cohomology groups of the subgroup s Gamma(o)(n) of SL(2, Z) and the corresponding subgroups P Gamma(o)(n ) of its quotient, the classical modular group, PSL(2, Z).